NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 307
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-03-05 | 307-215-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CASPER | WY |
| 2026-03-05 | 307-666-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHEYENNE | WY |
| 2026-03-05 | 307-922-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ROCK SPG | WY |
| 2026-02-20 | 307-290-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SUNDANCE | WY |
| 2026-02-20 | 307-388-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WORLAND | WY |
| 2026-02-20 | 307-629-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEWCASTLE | WY |
| 2025-06-30 | 307-666-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHEYENNE | WY |
| 2025-06-20 | 307-210-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SOUTHESRDN | WY |
| 2025-06-20 | 307-229-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | COKEVILLE | WY |
| 2025-06-20 | 307-244-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FREEDOM | WY |
| 2025-06-20 | 307-281-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SUNDANCE | WY |
| 2025-06-20 | 307-373-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GREYBULL | WY |
| 2025-06-20 | 307-388-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WORLAND | WY |
| 2025-06-20 | 307-391-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MOORCROFT | WY |
| 2025-06-20 | 307-404-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MEDICINBOW | WY |
| 2025-06-20 | 307-440-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BASIN | WY |
| 2025-06-20 | 307-442-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EVANSTON | WY |
| 2025-06-20 | 307-447-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SARATOGA | WY |
| 2025-06-20 | 307-474-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CODY | WY |
| 2025-06-20 | 307-921-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | THERMOPOLS | WY |
| 2025-06-20 | 307-949-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEWCASTLE | WY |
| 2024-04-26 | 307-650-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHEYENNE | WY |
| 2023-10-12 | 307-221-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHEYENNE | WY |
| 2023-07-12 | 307-227-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MAMMOTH | WY |
| 2023-03-28 | 307-650-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHEYENNE | WY |
| 2021-11-02 | 307-298-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DOUGLAS | WY |
| 2021-08-31 | 307-473-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CASPER | WY |
| 2021-04-17 | 307-351-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DOUGLAS | WY |
| 2021-04-17 | 307-620-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BUFFALO | WY |
| 2021-04-17 | 307-855-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | RIVERTON | WY |
| 2020-09-21 | 307-438-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LANDER | WY |
| 2020-09-21 | 307-696-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GILLETTE | WY |
| 2020-01-30 | 307-400-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHEYENNE | WY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.